芳香烃和苯
Aromatic hydrocarbons and benzene
以上为机器翻译结果，长、整句建议使用 人工翻译 。
另一组重要的石油化学品原料是芳香烃化合物，主要是苯、甲苯和二甲苯，主要由催化重整制得。
Another important group of petrochemical raw materials are the aromatic compounds, principally benzene, toluene and xylenes, which are mainly produced by catalytic reforming.
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